Structures Flashcards
The fluid that removes cellular waste products, pathogens, and dead blood cells from the tissues
Lymph (lymph/o)
The capillaries, vessels and ducts that return lymph from the tissues to the venous bloodstream
Lymphatic Vessels & Ducts
(lymph angina/o)
Bean shaped structures where pathogens and other harmful substances are filtered from the lymph by specialized cells of the immune system
Lymph Nodes (lymphaden/o)
Specialized leukocytes that play important roles in immune reactions
Lymphocytes (Lymphocytes/o)
A gland located in the upper chest with specialized roles in both the lymphatic and immune system
Thymus (them/o)
Made up of the remaining 10% of returning interstitial fluid. Lymph is clear, watery fluid containing electrolytes and protein
Lymph (LIMF)
Small, bean shaped nodes that contain specialized lymphocytes that are capable of destroying pathogens
Lymph Nodes
Leukocytes that are formed in bone marrow as stem cells work together with the body’s organs to defend the body against antigens
Lymphocytes
any substances that the body regards as being foreign including viruses, bacteria, toxins, and transplanted tissues
Antigens
Also called ____ lymphocytes
Specialized lymphocytes that produce antibodies
Each lymphocyte makes a specific antibody that is capable of destroying a specific antigen
B cells
Also called ____ lymphocytes
The __ is from their origin in the thymus
Play a central role in cell-mediated immunity
T cells
A group of proteins such as interferons and interleukins released primarily by the T cells act as intercellular signals to begin th immune response
Cytokines
- produced in response to antigens, particularly viruses or tumor cells
- fight viruses by slowing or stopping their manipulation
Interferons
Direct B and T cells to divide and proliferate
Interleukins
Three masses of lymphoid tissue that forms a protective ring around the back of the nose and throat
Tonsils
A mass of lymphoid tissue located above the heart
Part of the endocrine system
Secretes a hormone that stimulates the maturation of lymphocytes into T cells
Thymus Gland
Sac like mass of lymphoid tissue
Filters microorganisms from the blood
Forms lymphocytes and monocytes
Has the hemolytic function of destroying worn out erythrocytes
Spleen
